Search a number
-
+
1121387708 = 227149268789
BaseRepresentation
bin100001011010111…
…0000010010111100
32220011002101202002
41002311300102330
54244033401313
6303135121432
736534431630
oct10265602274
92804071662
101121387708
11525aa3201
12273673278
1314b42b92c
14a8d08dc0
15686ad058
hex42d704bc

1121387708 has 24 divisors (see below), whose sum is σ = 2257836000. Its totient is φ = 477367488.

The previous prime is 1121387693. The next prime is 1121387719. The reversal of 1121387708 is 8077831211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130223 + ... + 138566.

It is an arithmetic number, because the mean of its divisors is an integer number (94076500).

Almost surely, 21121387708 is an apocalyptic number.

It is an amenable number.

1121387708 is an abundant number, since it is smaller than the sum of its proper divisors (1136448292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121387708 is a wasteful number, since it uses less digits than its factorization.

1121387708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268949 (or 268947 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 38.

The square root of 1121387708 is about 33487.1274969950. The cubic root of 1121387708 is about 1038.9275520162.

The spelling of 1121387708 in words is "one billion, one hundred twenty-one million, three hundred eighty-seven thousand, seven hundred eight".

Divisors: 1 2 4 7 14 28 149 298 596 1043 2086 4172 268789 537578 1075156 1881523 3763046 7526092 40049561 80099122 160198244 280346927 560693854 1121387708